a strong trendP = 0·06
Meta-analysis of iodine status and intake in vegans and vegetarians compared with omnivores There was a strong trend for vegan or vegetarian diets to be associated with reduced iodine status as measured by UIC, but this did not quite reach significance ( Fig. 4 and 5 ; P = 0·06 & P = 0·18), so no subgroup analysis was completed.